/*
 *  Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
 *
 *  WSO2 Inc. licenses this file to you under the Apache License,
 *  Version 2.0 (the "License"); you may not use this file except
 *  in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.wso2.carbon.registry.indexing.indexer;

import java.io.ByteArrayInputStream;
import java.io.IOException;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.poi.hwpf.extractor.WordExtractor;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;
import org.apache.solr.common.SolrException;
import org.apache.solr.common.SolrException.ErrorCode;
import org.wso2.carbon.registry.indexing.AsyncIndexer.File2Index;
import org.wso2.carbon.registry.indexing.solr.IndexDocument;

public class MSWordIndexer implements Indexer {

	public static final Log log = LogFactory.getLog(MSWordIndexer.class);

	public IndexDocument getIndexedDocument(File2Index fileData)
			throws SolrException {
		try {
			POIFSFileSystem fs = new POIFSFileSystem(new ByteArrayInputStream(fileData.data));
			WordExtractor extractor = new WordExtractor(fs);
			String wordText = extractor.getText();

			return new IndexDocument(fileData.path, wordText, null);
		} catch (IOException e) {
			String msg = "Failed to write to the index";
			log.error(msg, e);
			throw new SolrException(ErrorCode.SERVER_ERROR, msg);
		}
	}

}
